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@article{PORMA_1964__23_1_114914, author = {Morgado, Jos\'e}, title = {Note on the distributive closure operators of a complete lattice}, journal = {Portugaliae mathematica}, pages = {11--25}, publisher = {mathdoc}, volume = {23}, number = {1}, year = {1964}, mrnumber = {0176945}, zbl = {0136.00903}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_1964__23_1_114914/} }
Morgado, José. Note on the distributive closure operators of a complete lattice. Portugaliae mathematica, Tome 23 (1964) no. 1, pp. 11-25. http://geodesic.mathdoc.fr/item/PORMA_1964__23_1_114914/